Sheet-metal culvert.



J. H. DEAN;

SHEET METAL GULVEET.

' APPLICATION 11mm 11.30, 1912.

Patented Jan. 7, 1913.

to be noted that. in so attaching the strips, adapted to pass through the passageways formed between the top sections and the passage-ways 5 are provided between the sections and said metal strips for receiving metal clips 6 for fastening adjacent strips of top and bottom sections together. It. is to be further noted that the longitudinal edges of the arched sect ions 3 are so cut. or shaped as to conform to the curvature of the upper surface of the corrugated bottom sections, as indicated at 7, thereby permitting said longitudinal edges to contact with the bottom sections for their entire .length and also neatly fit the concave and convex corrugations thereof when the sections are in assembled relation.

In the preferred embodiment of my invention the strips or' bars as indicated at 2 and 4, are continuous strips running substantially the entire length of each section, it being noted, however, that they stop short of at least one corrugation on one end of each section to ermit the overlapping of the meeting end s of longitudinally adjacent sections. These strips, however, may be made of short sections arranged at intervals along the longitudinal edges of the culvert sections, as will be obvious, and as more clearly set forth in an application for patent filed by me on April 22, 1912, Serial No. 692,326.

In assembling the sections of this culvert, the longitudinal edges of the top or arched sections are adapted to rest upon the bottom sections at points intermediate the metal strips 2 which are arranged along each longitudinal edge of said bottom sections. In this assembled position the metal strips 4 secured to the arched sections assume a position substantially at right angles to the strips 2, and furthermore lie adjacent thereto, so that said adjacent strips may be easily fastened together for retaining the sections in their assembled relation.

It is of course to be under-stood that any form of metal clip may be used for fastening the adjacent strips of opposite sections to gether, although it is preferred to use the form of fastening means shown in the drawings, wherein the clips 6 are made of sheet metal and Welded to the underside of the strips or bars of the bottom sections at points intermediate the convex corrugations of said sections. These clips are welded to the strips 2 as just referred to, during the course of manufacture of these sections, and of course prior to the assembling of the sections at the place Where the culvert is to be used. It Wlll be readily understood that these clips fastened to the strips at the points indicated and opposite the concave corrugations of the bottom sections, may lie flat and within said concave corrugations while being shipped or in storage. At the time the top and bottom sections are to be assembled, however, these clips 6 are bent up into a vertical position to receive the top sections, said clips being parts is simple and effectual and is of such a I character that. it may be accomplished where the WOl'k of in talling a culvert is being carried on. sections are constructed without outstanding flanges and that the top or arched-shaped section is adapted to be connected to the bottom section with its longitudinal edges abut- It is to be further, noted that. the

tin r the upper face of said bottom section, 1

am that both the top and bottom sections may be fastened together without the use 01 bolts, rivets, or similar fastening devices engaging the metal sections themselves.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. Asheet metal culvert comprising a flat bottom section transversely corrugated, a top section bent into arched form and having its longitudinal edges so cut as to conform to the curvature of the upper surface of the bottom section, metal strips or bars secured along the longitudinal edges of each section, and means for fastening the strips of top and bottom sections together.

2. A sheet metal culvert section provided with transverse corrugations, a metal strip or bar secured to the convex'gorrugations of said section along the longitudinal edge thereof, and a metal clip welded to the under side of said strip at a point intermediate the convex corrugations.

3. A sheet metal culvert comprising a flat bottom section, a top section bent into arched form and having its longitudinal edges abutting the upper surface of said bottom section, metal strips or bars secured along the longitudinal edges of each section,

and bottom sections together.

'4. A sheet metal culvert comprising a fiat bottom section, a metal strip or bar secured along each longitudinal edge thereof, a top section bent into arched form and having its longitudinal edges abutting the upper surface of said bottom section at points intermediate the metal strips of said bottom section, a metal strip or bar secured along the longitudinal edges of said top sections, and means for fastening adjacent strips-of both sections together.

5. A sheet metal culvert comprising a flat bottom section, a metal strip or bar secured along each longitudinal edge thereof, a top section having longitudinal edges abutting the upper surface of said bottom section, a metal strip or bar secured along the longitudinal edges of said top section, the strips of opposite sections arranged adjacent one another on each side of the culvert and at right angles, and means for fastening adjacent strips together.

6. A sheet metal culvert section provided with a metal strip or bar secured to said sec ion along its longitudinal edge, and fasten ng means rigidly and permanently secured :0 said metal strip, and adapted for engagenent with a complementary section.

7. A sheet metal culvert section provided with a metal strip or bar secured to said section along its longitudinal edge, and a metal clip rigidly Secured to said metal strip. a

8. A sheet metal culvert section provided with transverse corrugations, a. metal strip or bar secured to the convex corru ations of said section along the longitudinal edge thereof, and fastening means rigidly and permanently secured to said metal strip,'and adapted for engagement with the strip of a complementary section.

9. A sheet metal culvert section provided with transversecorrugations, a metal strip or bar secured to the convex corrugations of said .section along the longitudinal edge thereof, and a sheet metal clip rigidly secured to the metal strip a points intermc diate said convex corrugations.

10. A sheet metal culvert section p'ovided with a metal strip or bar secured along its longitudinal edge, and fastening means welded to said. strip at points intermediate its ends.

11, A. sheet metal culvert comprising complementary sections, and fastening means rigidly and permanently secured to one of the sections and adapted to be detachably connected to the other. section for firmly retaining the sections in connected relation.

12. A sheet metal culvert comprising complementary sections, and a metal clip Welded to one of the sections and ada ted to be bent into engagement with the otier section for fastening the sections together.

In testimony whereof I have affixed my signature in presence of two witnesses.

JOHN H. DEAN. Witnesses:

T. B. TURNER, JNo. W. COCHRAN.

Copies at this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G." 

